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Vuln ID | Summary | CVSS Severity |
---|---|---|
CVE-2021-29977 |
Mozilla developers reported memory safety bugs present in Firefox 89. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 90. Published: August 05, 2021; 4:15:08 PM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.8 MEDIUM |
CVE-2021-29976 |
Mozilla developers reported memory safety bugs present in code shared between Firefox and Thunderbird. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.12, Firefox ESR < 78.12, and Firefox < 90. Published: August 05, 2021; 4:15:08 PM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.8 MEDIUM |
CVE-2021-29975 |
Through a series of DOM manipulations, a message, over which the attacker had control of the text but not HTML or formatting, could be overlaid on top of another domain (with the new domain correctly shown in the address bar) resulting in possible user confusion. This vulnerability affects Firefox < 90. Published: August 05, 2021; 4:15:08 PM -0400 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0: 4.3 MEDIUM |
CVE-2021-29974 |
When network partitioning was enabled, e.g. as a result of Enhanced Tracking Protection settings, a TLS error page would allow the user to override an error on a domain which had specified HTTP Strict Transport Security (which implies that the error should not be override-able.) This issue did not affect the network connections, and they were correctly upgraded to HTTPS automatically. This vulnerability affects Firefox < 90. Published: August 05, 2021; 4:15:08 PM -0400 |
V4.0:(not available) V3.1: 4.3 MEDIUM V2.0: 2.6 LOW |
CVE-2021-29972 |
A use-after-free vulnerability was found via testing, and traced to an out-of-date Cairo library. Updating the library resolved the issue, and may have remediated other, unknown security vulnerabilities as well. This vulnerability affects Firefox < 90. Published: August 05, 2021; 4:15:08 PM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.8 MEDIUM |
CVE-2021-29970 |
A malicious webpage could have triggered a use-after-free, memory corruption, and a potentially exploitable crash. *This bug could only be triggered when accessibility was enabled.*. This vulnerability affects Thunderbird < 78.12, Firefox ESR < 78.12, and Firefox < 90. Published: August 05, 2021; 4:15:08 PM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 5.1 MEDIUM |
CVE-2021-29968 |
When drawing text onto a canvas with WebRender disabled, an out of bounds read could occur. *This bug only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 89.0.1. Published: June 24, 2021; 10:15:10 AM -0400 |
V4.0:(not available) V3.1: 8.1 HIGH V2.0: 5.8 MEDIUM |
CVE-2021-29967 |
Mozilla developers reported memory safety bugs present in Firefox 88 and Firefox ESR 78.11. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.11, Firefox < 89, and Firefox ESR < 78.11. Published: June 24, 2021; 10:15:10 AM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.8 MEDIUM |
CVE-2021-29964 |
A locally-installed hostile program could send `WM_COPYDATA` messages that Firefox would process incorrectly, leading to an out-of-bounds read. *This bug only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability affects Thunderbird < 78.11, Firefox < 89, and Firefox ESR < 78.11. Published: June 24, 2021; 10:15:10 AM -0400 |
V4.0:(not available) V3.1: 7.1 HIGH V2.0: 5.8 MEDIUM |
CVE-2021-29955 |
A transient execution vulnerability, named Floating Point Value Injection (FPVI) allowed an attacker to leak arbitrary memory addresses and may have also enabled JIT type confusion attacks. (A related vulnerability, Speculative Code Store Bypass (SCSB), did not affect Firefox.). This vulnerability affects Firefox ESR < 78.9 and Firefox < 87. Published: June 24, 2021; 10:15:10 AM -0400 |
V4.0:(not available) V3.1: 5.3 MEDIUM V2.0: 2.6 LOW |
CVE-2021-29951 |
The Mozilla Maintenance Service granted SERVICE_START access to BUILTIN|Users which, in a domain network, grants normal remote users access to start or stop the service. This could be used to prevent the browser update service from operating (if an attacker spammed the 'Stop' command); but also exposed attack surface in the maintenance service. *Note: This issue only affected Windows operating systems older than Win 10 build 1709. Other operating systems are unaffected.*. This vulnerability affects Thunderbird < 78.10.1, Firefox < 87, and Firefox ESR < 78.10.1. Published: June 24, 2021; 10:15:09 AM -0400 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0: 6.4 MEDIUM |
CVE-2021-29947 |
Mozilla developers and community members reported memory safety bugs present in Firefox 87. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 88. Published: June 24, 2021; 10:15:09 AM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.8 MEDIUM |
CVE-2021-29946 |
Ports that were written as an integer overflow above the bounds of a 16-bit integer could have bypassed port blocking restrictions when used in the Alt-Svc header. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88. Published: June 24, 2021; 10:15:09 AM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.8 MEDIUM |
CVE-2021-29944 |
Lack of escaping allowed HTML injection when a webpage was viewed in Reader View. While a Content Security Policy prevents direct code execution, HTML injection is still possible. *Note: This issue only affected Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 88. Published: June 24, 2021; 10:15:09 AM -0400 |
V4.0:(not available) V3.1: 6.1 MEDIUM V2.0: 4.3 MEDIUM |
CVE-2021-24002 |
When a user clicked on an FTP URL containing encoded newline characters (%0A and %0D), the newlines would have been interpreted as such and allowed arbitrary commands to be sent to the FTP server. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88. Published: June 24, 2021; 10:15:09 AM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.8 MEDIUM |
CVE-2021-24001 |
A compromised content process could have performed session history manipulations it should not have been able to due to testing infrastructure that was not restricted to testing-only configurations. This vulnerability affects Firefox < 88. Published: June 24, 2021; 10:15:09 AM -0400 |
V4.0:(not available) V3.1: 4.3 MEDIUM V2.0: 4.3 MEDIUM |
CVE-2021-24000 |
A race condition with requestPointerLock() and setTimeout() could have resulted in a user interacting with one tab when they believed they were on a separate tab. In conjunction with certain elements (such as <input type="file">) this could have led to an attack where a user was confused about the origin of the webpage and potentially disclosed information they did not intend to. This vulnerability affects Firefox < 88. Published: June 24, 2021; 10:15:09 AM -0400 |
V4.0:(not available) V3.1: 3.1 LOW V2.0: 2.6 LOW |
CVE-2021-23999 |
If a Blob URL was loaded through some unusual user interaction, it could have been loaded by the System Principal and granted additional privileges that should not be granted to web content. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88. Published: June 24, 2021; 10:15:09 AM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.8 MEDIUM |
CVE-2021-23998 |
Through complicated navigations with new windows, an HTTP page could have inherited a secure lock icon from an HTTPS page. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88. Published: June 24, 2021; 10:15:09 AM -0400 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0: 4.3 MEDIUM |
CVE-2021-23997 |
Due to unexpected data type conversions, a use-after-free could have occurred when interacting with the font cache. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox < 88. Published: June 24, 2021; 10:15:09 AM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.8 MEDIUM |